<template>
  <div class="login-container">
    <div class="login-box">
      <div class="avatar_box">
        <img src="../assets/logo.png" alt="" />
      </div>
      <el-form label-width="0px" class="login_form" :model="loginForm" :rules="rules" ref="loginref">
        <!-- 用户输入框 -->
        <el-form-item prop="username">
          <el-input
            prefix-icon="iconfont icon-user"
            v-model="loginForm.username"
          ></el-input>
        </el-form-item>
        <el-form-item prop="password">
          <el-input
            prefix-icon="iconfont icon-3702mima"
            v-model="loginForm.password" type="password"
          ></el-input>
        </el-form-item>
        <!-- 登陆按钮 -->
        <el-form-item class="btns">
          <el-button type="primary" round @click="login">登陆</el-button>
          <el-button type="info" round @click="clearForm">重置</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<script>
export default {
  data: function () {
    return {
      loginForm: {
        username: 'admin',
        password: '123456'
      },
      rules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          { min: 3, max: 10, message: '长度在 3 到 5 个字符', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          { min: 4, max: 10, message: '长度在 4 到 10 个字符', trigger: 'blur' }
        ]
      }
    }
  },
  methods: {
    clearForm: function () {
      this.$refs.loginref.resetFields()
    },
    login: function () {
      this.$refs.loginref.validate(async valid => {
        if (!valid) return
        const { data: res } = await this.$http.post('/login', this.loginForm)
        if (res.meta.status !== 200) return this.$message.error('密码错误')
        this.$message.success('登陆成功')
        window.sessionStorage.setItem('token', res.data.token)
        this.$router.push('/home')
      })
    }
  }
}
</script>

<style lang="less" scoped>
.login-container {
  height: 100%;
  width: 100%;
  background-color: #2b4b6b;
}
.login-box {
  position: absolute;
  height: 300px;
  width: 450px;
  background-color: #fff;
  border-radius: 3px;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}
.avatar_box {
  height: 130px;
  width: 130px;
  border: solid 1px #eee;
  position: absolute;
  padding: 10px;
  left: 50%;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  background-color: #fff;
  box-shadow: 0 0 10px #ddd;
  img {
    height: 100%;
    width: 100%;
    border-radius: 50%;
    background-color: #eee;
  }
}
.login_form {
  position: absolute;
  width: 100%;
  bottom: 0;
  padding: 0 20px;
  box-sizing: border-box;
}
.btns {
  display: flex;
  justify-content: flex-end;
}
</style>
